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arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

168,742 papers · 148 categories

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48 results for particle swarming

The paper learns particle swarming models from data using Gaussian processes.

problem Understanding the link between individual interaction rules and swarming behavior.
method Proposes a learning approach using Gaussian processes to model latent radial interaction functions and scalar parameters in non-collective friction forces.
result Establishes that a coercivity condition is sufficient for recoverability and provides a finite-sample analysis showing optimal convergence rates.

Paper uses averaging from many particle filters to approximate posterior predictive distributions.

problem Approximating posterior predictive distributions efficiently and accurately.
method Particle swarm filter algorithm that averages many particle filter approximations.
result Law of large numbers and central limit theorem support the method's effectiveness.

The paper connects PSO and CBO methods using stochastic modeling and mean-field limits.

problem Global optimization problems with particle swarm optimization and consensus based optimization.
method Stochastic differential equations and mean-field approximation to derive macroscopic hydrodynamic equations.
result Derives mean-field approximation for PSO and links it to CBO methods.

New algorithm uses PSO to optimize DNN training parameters in distributed systems.

problem Reducing synchronization frequency in DNN training leads to poor convergence.
method Integrates PSO into distributed training to automatically compute new parameters.
result Proposed algorithm outperforms synchronous methods in distributed DNN training.

PSO optimizes model parameters in nonstandard distributions.

problem Estimating model parameters in nonstandard distributions using existing algorithms.
method Particle Swarm Optimization (PSO) as an alternative optimization routine.
result PSO produces more optimal or convergent results than existing algorithms.

A new time-series clustering method using slope-based similarity and PSO.

problem Clustering time-series data efficiently and accurately.
method Developed a novel slope-based similarity measure combined with Particle Swarm Optimization (PSO) for clustering.
result The proposed similarity measure outperforms existing measures in clustering time-series data.

Optimal income crossover found using particle swarm optimization.

problem Determining the crossover point between two income distributions.
method Particle swarm optimization for finding crossover income, temperature, and Pareto index.
result Optimization method finds boundaries of two income distributions.

Metaheuristics optimize portfolios with pre-assignment and margin trading for better risk-adjusted returns.

problem Maximizing returns while minimizing risk in portfolio optimization.
method Incorporates pre-assignment constraints and margin trading strategies using Genetic Algorithms and Particle Swarm Optimization.
result Metaheuristic-based portfolio optimization yields superior risk-adjusted returns compared to traditional methods.

Metaheuristics improve yield curve estimation for Costa Rica.

problem Estimating the yield curve for Costa Rica using historical data.
method Used Nelson-Siegel and Svensson models with four metaheuristics (Ant colony, Genetic, Particle Swarm, Simulated Annealing) for optimization.
result Metaheuristics achieved better results than classical methods, especially Particle Swarm and Simulated Annealing.

Method for explaining machine learning survival models using counterfactuals.

problem Tackles the challenge of explaining survival models in machine learning.
method Introduces a condition based on the difference of mean times to event for counterfactual explanation. Reduces the problem to a convex optimization problem for Cox models and applies Particle Swarm Optimization for other models.
result Demonstrates the effectiveness of the proposed method through numerical experiments.

Study defines and optimizes bank reliability using LR and PSO.

problem Lack of reliability concept in financial services.
method Logistic Regression (LR) for initial estimation, Particle Swarm Optimization (PSO) for optimization.
result Optimal financial ratios maximize bank reliability.

ARS visualization improves t-SNE dynamics with tunable attraction and repulsion.

problem Improve data visualization techniques for complex data sets.
method ARS framework based on t-SNE dynamics with normalized interactions and tunable kernels.
result ARS visualization provides better control over cluster tightness and spacing.

PSO improves GG-optimal designs for up to 5 factors, reducing computation time.

problem Computing highly GG-optimal designs for response surface models is computationally expensive.
method Extended Particle Swarm Optimization (PSO) for optimal design problems.
result PSO generates improved GG-optimal designs for up to 5 factors with comparable computational cost.

This paper improves combine harvester performance using ANN-PSO hybrid model.

problem Improving performance of combine harvesters to minimize waste and reduce maintenance.
method Proposes a hybrid machine learning model combining artificial neural networks and particle swarm optimization.
result Demonstrates higher accuracy and stability in predicting optimal performance of combine harvesters.

This paper proposes the use of an optimization algorithm, namely PSO to decide the initial centroids in K-means, to eventually get better accuracy. The vectorized notation of the optimal centroids can be thought of as entities in an optimization space, where the accuracy of K-means over a random subset of the data coul…

2019-04-19abs ↗pdf ↗

Transformers approximate mean-field dynamics of indistinguishable particles.

problem Approximating the dynamics of indistinguishable particles in complex systems.
method Using transformers to model the mean-field dynamics of interacting particle systems.
result Theoretical bounds on the distance between true and transformer-obtained mean-field dynamics.

Novel LSTM network predicts pulsar timing residuals with few-shot data.

problem Predicting pulsar timing residuals with limited data.
method Long Short-Term Memory (LSTM) network optimized with model-agnostic meta-learning and particle swarm optimization.
result Robust generalization and accurate predictions across high-frequency test domains with minimal data.

Method identifies IPS governing equations from particle data efficiently.

problem Identify governing equations of interacting particle systems efficiently.
method Combines mean-field theory and WSINDy for large NN and MM.
result Converges with rate O(N1/2)\mathcal{O}(N^{-1/2}) for N100N \geq 100.

Paper proposes a federated learning framework for UAV swarms, optimizing convergence rate and energy consumption.

problem Challenges of centralized ML in UAV swarms due to limited connections and large data volumes.
method Distributed federated learning within UAV swarm, joint power allocation and scheduling design.
result Joint design strategy reduces communication rounds by up to 35%.

We study a distributed framework for stochastic optimization which is inspired by models of collective motion found in nature (e.g., swarming) with mild communication requirements. Specifically, we analyze a scheme in which each one of N>1N > 1 independent threads, implements in a distributed and unsynchronized fashion,…

2018-06-11abs ↗pdf ↗

Recently, deep reinforcement learning (RL) methods have been applied successfully to multi-agent scenarios. Typically, these methods rely on a concatenation of agent states to represent the information content required for decentralized decision making. However, concatenation scales poorly to swarm systems with a large…

2018-07-17abs ↗pdf ↗

Proposes a new framework for predicting stock market movements using sparse neural architectures.

problem Challenging problem of predicting stock market movements using technical indicators.
method Multi-criteria optimization approach to evolve sparse neural architectures.
result Evolved parsimonious networks with better generalization capabilities.

Inverse reinforcement learning (IRL) has become a useful tool for learning behavioral models from demonstration data. However, IRL remains mostly unexplored for multi-agent systems. In this paper, we show how the principle of IRL can be extended to homogeneous large-scale problems, inspired by the collective swarming b…

2016-02-17abs ↗pdf ↗